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SigmasTek  |  SKU: BW-5375

Best Power FERRUPS FES 850VA UPS High Performance Replacement Battery 12.66 lb

20% off
New arrival
Sale price $55.99 USD Regular price $69.99
Shipping calculated at checkout.
High rate discharge AGM technology for UPS applications
Maintenance-free, spill proof design for easy maintenance
U.L. Recognized and CE Certified for reliable safety standards
Brand new and factory fresh with 1 year warranty
Compatible with emergency power and battery tools
In stock

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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.


Volts & Amps

12 Volts | 18 Ah

Terminal Type

Nut & Bolt

Replacement Best Power FERRUPS FES 850VA Battery — Compatible with Best Power FERRUPS FES 850VA

Ensure uninterrupted protection for your Best Power FERRUPS FES 850VA with this replacement UPS battery designed to meet or exceed OEM SLA specifications. Engineered for dependable backup and consistent performance, this maintenance-free unit uses AGM technology and a high rate discharge profile to deliver reliable power during outages. It’s an ideal high-performance UPS battery for protecting small UPS systems, network devices, and emergency equipment.

Key Specifications

  • Compatible Model: Best Power FERRUPS FES 850VA
  • Battery Type: Sealed Lead Acid (SLA)
  • Electrolyte Technology: Absorbent Glass Mat (AGM)
  • Discharge Design: High Rate Discharge Design
  • Maintenance: Maintenance-Free with Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Voltage: 12 Volts
  • Capacity: 18 Ah
  • Terminal Type: Nut & Bolt
  • Manufacturer / Label: SigmasTek
  • Brand (replacement for): Best Power
  • Typical Applications: Emergency Power Supply, Battery Powered Tools

Benefits

  • Solid durability: With AGM construction and spill-proof design, this long-lasting battery withstands everyday use and reduces the need for maintenance, making it perfect for small UPS units and emergency systems.
  • Dependable runtime: The high rate discharge capability allows quick delivery of power when the grid fails, ensuring your equipment stays operational and protected.
  • High-performance backup: This high-performance UPS battery provides stable discharge characteristics and reliable power delivery for sensitive electronics, communications devices, and other critical loads.
  • Certified and safe: U.L. recognition and CE certification confirm the battery’s safety profile for use in homes, offices, and light industrial settings.
  • Easy swap-in: Nut & bolt terminals provide secure, low-resistance connections for straightforward replacement in Best Power FERRUPS FES 850VA units.
  • Versatile applications: Ideal for UPS backup, emergency power supply, and battery-powered tools where stable, reliable battery performance is required.

Ready to replace your old battery? Purchase this replacement UPS battery for the Best Power FERRUPS FES 850VA now and get a high-performance, long-lasting battery with a 1 year warranty to keep your critical systems online. Buy now to restore reliable backup power.

Technical Specifications

Voltage12 Volts
Amp Hours18 Ah
Terminal TypeNut & Bolt
Length (in.)7.13
Width (in.)3.0
Height (in.)6.59
Weight (lb.)12.65

Product Highlights

  • Brand Replacement : Best Power
  • Manufacturer: SigmasTek
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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